共 25 条
[21]
PILPEL N, 1959, RESEARCH, V12, P68
[22]
Reid EE, 1943, ORG SYNTH, V2, P246
[23]
RHODES CA, 1958, CHEM PROD, V21, P320
[24]
WINSTEIN S, 1950, HETEROCYCLIC COMPOUN, V1, P8
[25]
1961, CHEM WEEK, V88, P45